First ionization potential measurements using laser-induced breakdown spectroscopy
| Autor: | Sherbini, Ahsraf M. EL, Faham, Mohamed M. EL, Parigger, Christian G. |
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| Rok vydání: | 2016 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| Popis: | The first ionization potential of neutral atoms is determined from thresholds of laser-induced optical breakdown. Bulk material ablation plasma of aluminum, silver, lead, indium and copper is created in laboratory air with focused, 5-ns pulsed Nd:YAG, 1064 nm IR radiation. At fixed spot size of 2 $\pm$ 0.1 mm, the laser fluence is varied from 16 to 3 J/cm$^2$. The first ionization potentials of the lines Al I 396.2, Ag I 520.9, Pb I 405.8 and 406.2, In I 410.2 and Cu I 515.3 nm are measured to amount to 5.9 $\pm$ 0.2, 7.6 $\pm$ 0.3, 7.4 $\pm$ 0.2, 5.8 $\pm$ 0.1 and 7.7 $\pm$ 0.2 eV, respectively. Comment: 4 pages, 2 figures, 3 tables, 17 references |
| Databáze: | arXiv |
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